Date: Mon, 3 Apr 2006 07:13:51 +0200 From: Erik Trulsson <ertr1013@student.uu.se> To: valentin_nils@be-known-online.com Cc: freebsd-questions@freebsd.org Subject: Re: Filesystem layout with sperated /boot partition Message-ID: <20060403051351.GA78922@owl.midgard.homeip.net> In-Reply-To: <20060403023342.ioc7cb6koeww8o4s@www.be-known-online.com> References: <20060403023342.ioc7cb6koeww8o4s@www.be-known-online.com>
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On Mon, Apr 03, 2006 at 02:33:42AM +0000, valentin_nils@be-known-online.com wrote:
> Hello FreeBSD Fans,
>
> I wanted to create a new system and was thinking about the following layout.
>
> Size | Mountpoint | Device name | File system
> 100M /boot /dev/ad2s1a UFS2+S
> 1024MB --- /dev/ad2s1b SWAP
> 15GB / /dev/ad2s1c UFS2
>
> I want to put /boot on its own partition, but somehow I dont have a lot of luck.
> I can install the OS, but when I reboot the bootloader will not boot.
Don't do that. You can not have /boot as a separate partition. It just
contains the kernel and the loader. The other things that are needed for
booting (like /bin/sh or /sbin/mount) reside elsewhere. (Having /boot as a
separate partition is apparently some Linux-specific convention.)
What is normally done under FreeBSD when you want a small boot partition is
to create /usr and /var as separate partitions which will let you create a
small (100M) '/' partition. (You will probably also want either a separate
/home partition for user home directories, or let them reside under
/usr/home. (I think the latter is the default, but I am not 100% sure.)
>
>
> No /boot/loader
> ...
> Default: 0:ad(0,a)/boot/kernel/kernel
> boot:
> No /boot/kernel/kernel
> ...
>
> 1) I wouldnt mind on which partition "/boot" or "/" sits or what its named, but
> I would like to separate "/boot" on a different partition and it seems like it
> wouldnt boot when I do this. Is this just a matter of updating the bootloader ?
> Wouldnt the installer do that automatically ?
See above. You can't do that.
>
> 2) The part which I dont get is why is "/" always ad2s1a - even when I create
> "/boot" first ? ("/boot" will become f.e. ad2s1d) and SWAP will become ad2s1b.
You need to boot from "/" and it should be partition 'a' on the slice. It
is probably possible to change this, but it would be much more pain and
trouble than it is worth.
>
> So what I end up with is something like
>
> Size | Mountpoint | Device name | File system
> 15GB / /dev/ad2s1a UFS2
> 1024MB --- /dev/ad2s1b SWAP
> 100M /boot /dev/ad2s1d UFS2+S
>
>
> Any replies much appreciated.
A good place to start reading is the online handbook:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/
especially the chapter on installing FreeBSD:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/install.html
The FAQ at http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/ might also
prove helpful.
>
> Best regards
>
> Nils Valentin
> http://www.be-known-online.com
>
--
<Insert your favourite quote here.>
Erik Trulsson
ertr1013@student.uu.se
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